Yes, its the last one until the cast’s careers have flopped!

‘American Wedding’ final ‘Pie’ film
LOS ANGELES (AP) — Looks like moviegoers are getting the last slice of “American Pie” with this month’s release of “American Wedding,” which completes the comedy series, according to the film’s star.
Jason Biggs, whose character Jim pulls off outrageous, frat-boy antics in the trilogy, said the latest installment will be the end.
Biggs told reporters recently that he felt a bit sad working on the set, knowing “American Wedding” would be his last time working with the cast of Alyson Hannigan, Eugene Levy and others.
“It felt like it was the end. There was a sense of finality to it,” Biggs said. “You know, I’ve had a wonderful time playing Jim, but furthermore, I’ve had an amazing time with this cast. The experiences on these three films that I’ve had have been incomparable. It’s been so much fun.”
Biggs said it would be tough to top any of the stunts his character has pulled off in the trilogy.
“Pie 2 really did it for me. There’s not really much after that that’s going to weird me out or give me pause.”
The actor did mention that he’s a bit concerned about landing dramatic roles after playing such a major comedy role.
“It’s just a matter of knocking on the right doors … and going out there and proving myself that I can do other things.”